Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating activities
Net Income	$ 57,863	$ 62,689
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	54,271	64,299
Stock-based compensation	9,256	9,518
Amortization of prepaid debt fees	763	2,265
Amortization of convertible debt discount	0	5,336
Deferred taxes, net	628	6,081
Restructuring expense, non-cash	1,487	0
Other adjustments, net	(11)	(848)
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable	8,046	(12,106)
Inventories	(2,786)	(36,668)
Other current assets	(13,663)	(21,268)
Other long-term assets	3,559	(22,993)
Accounts payables, other current liabilities, and taxes payable	(5,817)	16,523
Wages and benefits payable	(11,244)	(21,531)
Unearned revenue	5,627	24,159
Warranty	(11,991)	9,510
Other operating, net	(3,598)	2,726
Net cash provided by operating activities	92,390	87,692
Investing activities
Acquisitions of property, plant, and equipment	(23,547)	(28,712)
Business acquisitions, net of cash and cash equivalents acquired	(79,605)	(14,635)
Other investing, net	3,993	513
Net cash used in investing activities	(99,159)	(42,834)
Financing activities
Proceeds from borrowings	70,000	0
Payments on debt	(67,502)	(55,630)
Issuance of common stock	2,407	2,553
Repurchase of common stock	(25,976)	0
Other financing, net	(271)	(319)
Net cash used in financing activities	(21,342)	(53,396)
Effect of foreign exchange rate changes on cash and cash equivalents	(2,175)	7,345
Decrease in cash and cash equivalents	(30,286)	(1,193)
Cash and cash equivalents at beginning of period	133,086	169,477
Cash and cash equivalents at end of period	102,800	168,284
Non-cash transactions:
Property, plant, and equipment purchased but not yet paid, net	(2,375)	978
Fair value of contingent and deferred consideration payable for business acquisition	0	5,108
Cash paid during the period for:
Income taxes, net	20,173	6,842
Interest, net of amounts capitalized	$ 4,275	$ 15,927